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ENYIRCNMENTA! BCIEHCEB <br />Arcadis- SLO Reported: 03/10/2023 12:33 <br />735 Tank Farm Rd, Suite 150 Project: Forward Landfill <br />San Luis Obispo, CA 93401 Project Number: 30110749.01 <br />Project Manager: Drew Feucht <br />Water Analysis (General Chemistry) <br />Quality Control Report - Laboratory Control Sample <br />Control Limits <br />Spike Percent Percent Lab <br />Constituent QC Sample ID Type Result Level Units Recovery RPD Recovery RPD Quals Run # <br />QC Batch ID: B158937 <br />Chloride <br />B158937-BS1 <br />LCS <br />54.047 <br />50.000 <br />mg/L <br />108 <br />90-110 <br />1 <br />Nitrate as N <br />8158937-BS1 <br />LCS <br />5.2100 <br />5.0000 <br />mg/L <br />104 <br />90-110 <br />1 <br />Sulfate <br />B158937-BS1 <br />LCS <br />108.52 <br />100.00 <br />mg/L <br />109 <br />90-110 <br />1 <br />3 <br />B159000-BS2 <br />LCS <br />EPA -6010B <br />01/31/23 <br />02/01/2315:29 <br />JCC <br />PE-OP3 <br />1 <br />QC Batch ID: B159000 <br />Dissolved Calcium <br />B159000-BS1 <br />LCS <br />10.332 <br />10.000 <br />mg/L <br />103 <br />80-120 <br />2 <br />Dissolved Magnesium <br />B159000-BS2 <br />LCS <br />10.251 <br />10.000 <br />mg/L <br />103 <br />80-120 <br />3 <br />Dissolved Sodium <br />B159000-BS1 <br />LCS <br />10.545 <br />10.000 <br />mg/L <br />105 <br />80-120 <br />2 <br />Dissolved Potassium <br />B159000-BS1 <br />LCS <br />10.086 <br />10.000 <br />mg/L <br />101 <br />80-120 <br />2 <br />QC Batch ID: B159180 <br />Total Dissolved Solids @ 180 C <br />B159180-BS1 <br />LCS <br />590.00 <br />586.00 <br />mg/L <br />101 <br />90-110 <br />4 <br />QC Batch ID: B161422 <br />Total Kjeldahl Nitrogen <br />B161422-BS1 <br />LCS <br />2.0901 <br />2.0000 <br />mg/L <br />105 <br />90-110 <br />5 <br />Run <br />Run # QC Sample ID QC Type Method Prep Date Date Time Analyst Instrument Dilution <br />1 <br />1 <br />B158937-BS1 <br />B158937-BS1 <br />LCS <br />LCS <br />EPA -300.0 <br />EPA -300.0 <br />01/30/23 <br />01/30/23 <br />01/31/23 04:22 <br />01/31/23 04:22 <br />RC1 <br />RC1 <br />IC7 <br />IC7 <br />1 <br />1 <br />1 <br />B158937-BS1 <br />LCS <br />EPA -300.0 <br />01/30/23 <br />01/31/23 04:22 <br />RC1 <br />IC7 <br />1 <br />2 <br />B159000-BS1 <br />LCS <br />EPA -6010B <br />01/31/23 <br />01/31/23 22:05 <br />DVS <br />PE-OP3 <br />1 <br />3 <br />B159000-BS2 <br />LCS <br />EPA -6010B <br />01/31/23 <br />02/01/2315:29 <br />JCC <br />PE-OP3 <br />1 <br />4 <br />B159180-BS1 <br />LCS <br />EPA -160.1 <br />02/02/23 <br />02/02/2316:30 <br />CAD <br />MANUAL <br />5 <br />5 <br />B161422-BS1 <br />LCS <br />EPA -351.2 <br />03/08/23 <br />03/09/2310:18 <br />IJO <br />SC -1 <br />1 <br />The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. <br />All results listed in this report are for the exclusive use of the submitting party. Pace Analytical assumes no responsibility for report alteration, separation, detachment or third party interpretation. <br />Report ID: 1001404873 4100 Atlas Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.pacelabs.com Page 44 of 50 <br />